An electron, a proton, a deuteron and an alpha particle, each having the same speed are in a region of constant magnetic field perpendicular to the direction of the velocities of the particles. The radius of the circular orbits of these particles are respectively R e , R p , R d and R α α . It follows that
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
In perpendicular magnetic field magnetic force provided centripetal force.
By the relation
Since, 
ratio for deuteron and 
-particle is the same.
Hence, the radius is the same for both.
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